Legend:

If you can successfully find a smaller program than this which exhibits the same issue, then I applaud you. But the original program is small enough that it may be worth checking in under a `should_fail` directory somewhere in the test suite.

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Also, we should mention this in the GHC 8.8 migration guide (https://ghc.haskell.org/trac/ghc/wiki/Status/GHC-8.8.1).

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Also, we should mention this in the GHC 8.8 migration guide (https://ghc.haskell.org/trac/ghc/wiki/Migration/8.8).